<template>
  <el-container class="home-container">
    <el-header>
      <router-link style="text-decoration: none;" to="/home">
        <div class="logo_tile">
          <h2>商品采购系统</h2>
        </div>
      </router-link>
      <div class="logo_tile">
        <span> 欢迎：<i class="el-icon-arrow-left"></i>{{loginname}}<i class="el-icon-arrow-right"></i> </span>
        <el-button @click="logout" type="info">退出</el-button>
      </div>
    </el-header>
    <el-container>
      <el-aside :width="isCollapse ? '65px' : '200px'">
        <div class="toggleBar" @click="isCollapse=!isCollapse">|||</div>
        <el-menu
          class="el-menu-vertical-demo"
          background-color="#333744"
          text-color="#fff"
          router
          unique-opened
          :collapse="isCollapse"
          :collapse-transition="false"
          active-text-color="#409EFF">

          <el-submenu  index="index" :class="{'el_submenu_large':!isCollapse,'el_submenu_small':isCollapse}">
            <template slot="title">
              <i class="el-icon-s-platform"></i>
              <span slot="title">数据中心</span>
            </template>
            <el-menu-item index="cai"><i class="el-icon-s-goods"></i>商品采购</el-menu-item>
            <el-menu-item index="cailist"><i class="el-icon-s-goods"></i>采购列表</el-menu-item>
            <el-menu-item index="goodlist"><i class="el-icon-s-goods"></i>商品列表</el-menu-item>
          </el-submenu>

        </el-menu>
      </el-aside>
      <!-- 右侧的 主体区域 -->
      <el-main>
        <router-view></router-view>
      </el-main>
    </el-container>
    <span style="color: gray; position: fixed; bottom: 0; right: 0;">商品采购系统</span>
  </el-container>
</template>

<script>
    export default {
        name: "Home",
        data(){
          return{
            user:{},
            isCollapse:false,
            loginname:""
          }
        },
      methods:{
        logout:function () {
            sessionStorage.removeItem("user");
            this.$router.push("/login");
        }
      },
      mounted() {
          this.user=JSON.parse(sessionStorage.getItem("user"));
          this.loginname=this.user.fullname;
      }
    }
</script>

<style scoped lang="less">
  .home-container {
    height: 100%;
  }

  .el-header {
    background-color: #373d41;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0;
    user-select: none;

  .logo_tile {
    display: flex;
    align-items: center;
    color: white;

  h2 {
    font-weight: 200;
    margin-left: 15px;
  }
  }

  .el-button {
    margin-right: 10px;
  }
  }

  .el-aside {
    background-color: #333744;
    user-select: none;
  }

  .el-main {
    background-color: #eaedf1;
  }

  .iconfont {
    margin-right: 8px;
  }

  .toggleBar {
    color: #fff;
    font-size: 12px;
    line-height: 24px;
    background-color: #4a5064;
    text-align: center;
    letter-spacing: 0.2em;
    cursor: pointer;
    user-select: none;
  }

  .el_submenu_large {
    width: 200px;
  }

  .el_submenu_small {
    width: 65px;
  }
</style>
